Instructions for operating the CHP
6
Operating instructions for the natural gas-fuelled CHP module
VITOBLOC 200
6130329
GB
1.4
Residual dangers from operating a combined heat and power plant
What active risks are the operating personnel ex-
posed to from CHP module operations?
Irrespective of the actual conditions where a com-
bined heat and power plant will be installed, the rele-
vant fundamental safety regulations for the shipment
and the installation applicable to all trades (power,
gas, heating, ventilation) must be observed.
The following table makes reference to potential re-
sidual dangers which may still arise from the opera-
tion of a combined heat and power plant, even if the
relevant safety measures have been taken.
Risk analysis pursuant to DIN EN 12100:
What residual dangers is the operating
personnel exposed to when operating a CHP
produc
ti
on
/te
s
t run
tr
an
s
po
rtat
ion
s
torage
as
s
em
bl
y
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tal
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on
c
om
mi
s
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ion
ing
progr
am
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ng
at
th
e c
on
tr
ol
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ne
l
op
erati
on
s
c
lea
ni
ng
(
CHP
c
ol
d)
tr
ou
bl
e s
ho
oti
ng
ma
inte
na
nc
e
de
-c
om
mi
s
s
ion
ing
di
s
as
s
em
bl
y
di
s
po
s
al
Mechanical risks
1
1
1
Electrical risks
1
1
1
1
Thermal risks
2
2
2
2
2
2
Risks from noise
2
2
Risks from vibration
Risks from radiation
2
2
2
2
2
2
Risks from materials and substances
2
2
2
2
2
2
2
2
Risks from disregading ergonomic principles
Risks from skidding, stumbling and falling
Combinations of risks
Risks arising from the ambient conditions
Risks from unexpected starting, unexpected spinning
Risks from shutting-down the plant (emergency-off)
Risks from changing the speed
Risks from power supply cuts
Risks from a failure in the control circuitry
Risks from breakages during operation
1
1
1
1
1
1
1
Risks from operating the plant in an explosive environment
1
high residual risk
– failure to observe the safety regulations may have fatal consequences.
2
residual risk
– failure to observe the safety regulations may cause health damage.
Table 2
Risk analysis pursuant to DIN EN 12100
Mechanical risks
Mechanical risks will occur, when safety covers have
to be removed during trouble-shooting or while
maintenance measures are carried out. This concerns
largely the cover grilles of the fan box and the coup-
ling cover as well as the timing belt cover, depending
on the type of plant.
This work must only be carried out by suitably trained
and specialist personnel.
Electrical risks
Electrical risks will occur, when safety covers have to
be removed during the commissioning (factory trial
run), during trouble-shooting or while maintenance
measures are carried out. This concerns largely the
lid of the alternator
’s terminal box or switches and
protective covers of the switchgear, e.g. when syn-
chronizing devices are adjusted or the alternator and
mains voltage is measured.
When working on the ignition system, suitable protec-
tive clothing must be worn, since electric shocks can
be transmitted from defective ignition cables.
This work must only be carried out by suitably trained
and specialist personnel.
